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lift— <br /> A A` <br /> 0 <br /> • EXCAVATION AREA <br /> IG <br /> 77-_T7�' <br /> 15 f w150 pm. /* / a 110 <br /> --/ �_. I.�.• . ..... . I . ... . 1- j , /—ppm <br /> 20 a 2,600 ppm <br /> 25 ESTIMATED 500 ppm TPH <br /> CONCENTRATION CONTOUR <br /> 30 i 7,106-ppm C <br /> ! �• ! ESTIMATED 100 ppm TPH <br /> CONCENTRATION CONTOUR <br /> • ,..r.•Y • � may.. f � . � � . �. <br /> 35 <br /> 40 a SRL ' <br /> Figure 4-3. Cross Section A-A' Showing Vertical Extent of Soil Contamination <br /> 1 <br /> 12 <br />